Home / 180,756.60-249,444.63-100,185.45

Finding the Fourth Proportional to 180,756.60, 249,444.63 and 100,185.45

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Solution

The fourth proportional to 180,756.60, 249,444.63 and 100,185.45 is: 138,256.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,756.60 : 249,444.63 = 100,185.45 : x
  2. Step 2: Convert to fraction form
    180,756.60/249,444.63 = 100,185.45/x
  3. Step 3: Cross multiply
    180,756.60x = 249,444.63 × 100,185.45
  4. Step 4: Simplify right side
    180,756.60x = 24,990,722,506.63
  5. Step 5: Solve for x
    x = 24,990,722,506.63/180,756.60
  6. Step 6: Final answer
    x = 138,256.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.